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Questions tagged [sputnik]

The Sputnik series of spacecraft achieved several firsts in the late 1950s, most notably Sputnik 1, which was the first artificial earth satellite.

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How did Russian Scientist analyse the data from Sputnik 1?

I could not find any information about the process of extracting and interpreting data from Sputnik 1, or the involvement of computers in the data analysis of that information. Does anyone have info ...
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What was the cause of the cooling system issue in Sputnik 2?

I've heard that there was a problem in the cooling system on sputnik 2. But, was it an engineering error? Obviously a dog cannot survive such harsh conditions. Did the engineering team overlook this ...
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Why were the Sputniks launched to such high apogee?

Sputnik I was launched to reach as high as 939 km above the sea level and made 1440 orbits. Vostok I with Gagarin aboard was launched to 327 km for one orbit. Wouldn't 200 km or even less be enough to ...
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Are there any events planned to celebrate Sputnik's 60th anniversary today?

April 12 has Yuri's Night to commemorate Yuri Gagarin's first orbital flight by a human. The launch of Sputnik 1, the first satellite humanity put into orbit, on 4 October 1957 at 10:58pm Moscow time ...
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Did Sputnik 1 have attitude control?

The (currently only) answer to Why did Sputnik 1 have four antennas? discusses how Sputnik 1 had four antennas in order to ensure that the Earth would never be in the null of any of its antennas. ...
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Why did Sputnik 1 have four antennas?

Sputnik was only launched a few hundred kilometers above Earth, and transmitted only a simple beeping signal. What was the purpose of having four antennas? Wouldn't one be powerful enough?
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What scientific and technological advances were prompted directly by Sputnik 1?

It's easy to say in retrospect that the USSR's Sputnik 1 was just a dumb radio transmitter that didn't actually do anything useful. However, it also stands to reason that putting that same "dumb ...
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Why were early Soviet spacecraft spherical?

Sputnik's ball shape is instantly recognizable to most of us: I was looking at the Wikipedia page for Luna 1, and saw it was also a ball-shaped spacecraft: Why do these spacecraft have a spherical ...
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Sputnik: What took so long?

After WWII, both the US and USSR began developing their early rockets based on the German V-2 work. USSR flew their R-1 copy of the V2 in 1948; the US flew Corporal in 1947. It wasn't until 1957 ...
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What is different from the R-7 that launched Sputnik, to the Soyuz launcher used for Soyuz/Progress launches?

One of the very interesting things about the Soviet (and now Russian) space program is how some things seem almost eternal. The first Sputnik launch was on an R-7 ICBM, modified for space launch. If ...
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Is there any footage of the rocket that launched Sputnik 1?

I am wondering if there is any visual documentation of the Sputnik launcher and/or launch, either video or photographs.